The Ancestor to the Hawaiian Crickets in the Genus Laupala

Multiple Choice

The ancestor to the Hawaiian crickets in the genus Laupala originally colonized the oldest of the islands in the Hawaiian archipelago.As new islands were formed,crickets from the older island would colonize the younger island.Because members of this genus are flightless,these migration events were likely to be extremely rare and would include a small number of migrants.Nonselective differences in allele frequencies in this genus are likely due to

A) differences in mutation rate.
B) a founder event.
C) genetic drift subsequent to colonization.
D) A and C
E) B and C